holy crap, Internet Oracle
Jan. 9th, 2008 10:44 amSo it seems like if you want to get a lot of comments you ask a question about a controversial topic.
Let's experiment and see if I can do it again.
So I'm on a mailing list where the discussion topic is the ban on gay and bisexual men donating blood to Canadian Blood Services. The person defending this ban claims it is necessary to safeguard blood recipients against HIV and Hepatitis.
I claim overt bigotry.
What do you think?
[EDIT] To be precise, the actual ban is on men who have ever had sex with men. They also ask women if they have ever had sex with a man who has ever had sex with a man. They do not ask questions about safe-sex practices. They do ask if you have ever had a test for HIV and why.
Let's experiment and see if I can do it again.
So I'm on a mailing list where the discussion topic is the ban on gay and bisexual men donating blood to Canadian Blood Services. The person defending this ban claims it is necessary to safeguard blood recipients against HIV and Hepatitis.
I claim overt bigotry.
What do you think?
[EDIT] To be precise, the actual ban is on men who have ever had sex with men. They also ask women if they have ever had sex with a man who has ever had sex with a man. They do not ask questions about safe-sex practices. They do ask if you have ever had a test for HIV and why.
(no subject)
Date: 2008-01-09 06:01 pm (UTC)(no subject)
Date: 2008-01-09 08:02 pm (UTC)Combine that key transmission vector along with "riding bareback", and with many sexual partners over a short duration and you're going to see a higher incidence of sex in a given segment of the population (gay men) especially if that segment of the population is tighter knit and more prone to be using the same infected partners.
1. My step father and most of my parents friends were in those funding battles trying to get resources to attack the problem. My mother worked in a lab in Down Town Atlanta where they were trying to develop a test for infants who had HIV Antibodies (babies have the antibodies regardless of the lack or presence of an infection and the tests available at the time tested ONLY for antibodies).
(no subject)
Date: 2008-01-09 09:10 pm (UTC)(no subject)
Date: 2008-01-10 12:43 am (UTC)Using 2005's infection rates with the 2000 population. (I don't have the time to look for 2000 incidence):
Total US demographics are 284,800,000 people by the 2000 census. Gay men account for about 2,000,000 of that, give or take.
In 2005 11,989 people of the US who were in the Non Male to male or injection drug use category were exposed and tested positive to for HIV.
5292 of those were men and women who engaged in IV drug use.
4255 of those were Adult and adolescent Males
7734 were adult and adolescent females.
263 people contracted HIV from other methods (perinatal, hemophilia, blood transfusion, etc)
Summed up that's 17544 all together. That's .0062%
Take out the IV drug users and it's 12,252 people in a given year or .0043%.
That same year 18296 men contracted HIV from MSM contact and another 1324 men both engaged in MSM contact AND used IV drugs. Thats 20,000 people out of a population of about 2,000,000.
~18,000 out of 2,000,000 is a percentage of .9% of that population, almost 1% of the population.
So for nearly 282,800,000 people, .0062% of that population will get HIV/AIDS.
For 2,000,000 people, nearly 1 percent of that population will get HIV/AIDS.
1: 2,000
Tell me again that homosexual men are NOT at high risk of contracting and having HIV/AIDS or of being carriers as compared to the rest of the population.
Here's my sources for pop figures:
http://www.adherents.com/adh_dem.html
and for infection/new case incidence figures:
http://www.cdc.gov/hiv/topics/surveillance/basic.htm#lwa
(no subject)
Date: 2008-01-10 01:20 am (UTC)So no, I'm not going to tell you that actively homosexual men are not at high risk of contracting or carrying HIV or AIDS as compared to the rest of the population - but I will tell you that the assumption that MSM contact (or contact with an MSM person) has varying periods for risk level based on gender is extremely suspect. If you are able to provide a reasoned explanation for that, then by all means, I would be really happy if I were wrong.
(no subject)
Date: 2008-01-10 02:14 am (UTC)1. There's probably a diminishing return on trying to find that untapped reserve of untainted blood in the MSM community from gay men who are no longer sexually active and are monogamous. The problem is finding those men and knowing when or when they are not a safe source for blood donations.
Further, immunology and public health policy works on averages and aggregates (I'd ask my mother about this as she was in grad school for public health but died of a heart attack in 2001 so my easy source for information on such things isn't around). But if I recall conversations about the subject with any clarity that's basically their targets. The Best bang for the buck as it were. Those averages, scientific estimates and collective groupings based on firm facts/numbers where you can get them and are just that. You look at a group, evaluate risks and make decisions on that risk.
Moreover, it's not a matter of being nice. It's not a matter of being fair. If I said that black men were likely to play basket ball, it'd be a not nice statement. If I said black men are more likely to have sickle cell anemia I'd be right and there's nothing nice or not nice about that statement. It's plain physiological fact that's clearly and firmly vetted in genetics. Clear facts about Tay-Sachs isn't anti-semitic, it's clear genetic commonalities among a given population. That community does what it can to clear up and screen for the genetic markers that would make that likely in a child.
People who make public health decisions look just at that fact and make decisions based on that. A disease isn't going to affect you more or less because you're offended. Using that as a basis for public policy is just plain dumb.
2. Woman on Woman contact sexually has a much lower incidence of transmitting HIV or AIDs than a lot of other methods of transmission. So that's a reason to discount that sector of the gay community. Physiologically the transmission vectors are different and that greatly affects the rates of infection. Can a lesbian get HIV from another lesbian, sure. But in my quick research on the subject it seemed like it was a very LOW incidence rate. Perhaps there are behavioral differences between Lesbians and Gay men that also affects their pattern of choosing sexual partners and thus lowers their rates of infections.
3. MSM contact is indicative of being gay. People advocating that their gender preference is not something that they can fix or cure are adamant about that. I tend to agree that it's a combination of genetics, in-vitro hormonal levels AND learned behavior which affects the final outcome with the in-vitro hormonal levels being the major factor. It seems outside of the realm of logic to argue that "a gay man can't be 'fixed or cured' and then argue that he's not ALWAYS going to be practicing risky behavior. Frankly my honest impression of gay men, and mind you this doesn't carry any ill will or intent, it's just an observation, is that they tend to be very promiscuous as a rule. Combine that with the HIV transmission vector and you've got a high risk group as a general rule. Trying to sort out the high and not high risk members of a small segment of the population that will have 1% of it's population contract HIV that year is pretty hard and probably a waste of resources.
(no subject)
Date: 2008-01-10 02:15 am (UTC)4. The problem with people lying is worse when you have a given percentage of a small population and a high incidence of infection who who have a given percentage who lie. We'll assume that lying among a given percentage of Gay men will be equal for the given percentage of people who don't practice MSM contact. Say 1 in 10 lie.
1 in 10 of the 1% of 2,000,000 is 2000 people who will be part of that risk group who has MSM contact but lie about it. 2000 out of a donor pool of 2,000,000 people seems pretty statistically significant.
1 in 10 of that .0043% of the 282,800,000 is 1200 or so people who are part of the larger general population. 1200 out of more than 280,000,000 people is not very statistically significant.
This might be the wrong methodology here, but we are just looking at those who are getting infected in that year (lag time before seroconversion has occurred but they're still infectious, their body just doesn't know it yet). Perhaps we should look at total infected population, but I do believe it's still heavily weighted towards a much greater percentage of the MSM segment of the population.
But you know, I think I just hit the nail on the head here. The key thing is that even WITH testing for antibodies which is the fastest way, if you expect EVERY test to be 100% effective for tests, you're still going to get some who are under the gun because their antigens haven't started being made but they have the HIV retrovirus in their blood. You can't test for antigens that aren't there. So you have to screen on behavior as well.
For your given population of donors, if 1% of a given population of 2 million is likely to have the virus but isn't going to test positive on the tests and .0043% of the much larger population of more than 280 million, then it's a pretty sure bet that you SHOULD exclude that 2 million as a donor source based on that behavior alone.
(no subject)
Date: 2008-01-10 02:33 am (UTC)(no subject)
Date: 2008-01-10 09:51 am (UTC)Which is it?
(no subject)
Date: 2008-01-10 04:26 pm (UTC)